Seat.



Q J. R. GRAVES.

SEAT.

APPLIOAQION FILED FEB. 17, 1912;

Patented Apr. 16, 1912.

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Specification of Letters Patent.

SEAT.

Patented Apr. 16, 1912.

Application filed February 17, 1912. Serial No. 678,273.

T 0 all QU/LOIR it may concern:

lie it known that I, JAMES R. GRAVES, a citizen of the United States,residing at Amesbury, in the county of Essex, State of Islassachusetts,have invented a certain new and useful Improvement in Seats, of whichthe following is a specification, reference being had therein to ,theaccompanying drawlngs.

In a certain type of seats employed principally as additional seats inautomobiles, but in some cases used elsewhere, the. seat proper is inhinged connection with a seatframe provided with a horizontal cross-barhaving a socket fitted to an upright journal upon a supporting arm, theseat-frame being adapted to swing in a horizontal plane around the saidjournal, and'the seat proper being adapted to swing in a vertical planeupon its connection with the seat-frame. A seat of such type is shownand described in II. S. Letters Patent to Graves and Benson,

No. 937,595, granted Oct. 19, 1909. When a seat of the said type ismounted in connection with the side of an automobile the seatframe maybe swung around into a position in which the cross-bar stands at rightangles to the said side with the seat facing forward, or the seabframemay be swung into a position in which the cross-bar extends parallelwith the said side. \Vhen the seat-frame occupies this latter positionthe seat may be turned up out of the way.

The invention consists in a seat of the general construction justdescribedhavingcombined therewith improved locking devices for holdingthe seat-frame in either of the two positions just explained, at will.

The invention is illustrated in the drawing in which latter,

Figure l is a view mainly in elevation but partly in vertical section ofa seat, seatlrame and supper-ting-arnr having my invention appliedthereto, the top part of the seed-frame being broken away. Fig. 2 is adetail view in plan.

l'laving reference to the drawings,r\t A is shown the seat proper, andat 13 is shown the back, the seat-frame being formed of metal, usuallyin practice, with its opposite side-portions o, l), united at theirlower ends with horizontally-extending side-arms b, b, which latter attheir front ends are .joined together by the cross-bar If. The seat ishinged to the side-arms I)", I), by meansof pivotal pins c a engagingwith the said side-arms and with depending lugs'a, a, carried by theseat The supporting arm is marked C. This supportingarm is in practiceapplied to or connected with the support, in general, for the seat.v Inthe Letters Patent aforesaid the said supporting arm is appliedremovably to a stand which is at-- tached to one side of an automobile.At 0 is 'the upright pin at the upper end of the supporting arm,constituting the journal for the seat-frame, and as shown in. Fig. 1 thecross-bar b of the seat-frame is formed with a socket'which receives thesaid pin. upper end of the said pin or journal 0 is reduced in diameterand screw-threaded and has screwed upon the same a nut 1 between whichand the top of the cross-bar is confined a plate 1.

The plate lis held from turning relative to the pin or journal 0 byengaging it with the latter in convenient manner. Herein' the upper 'endof the pin or journal next below the screw-threaded portion thereof isformed of polygonal shape in cross-section, and the plate 1 has thereinan opening which conforms to the exterior of the said polygonal portionof the pin or journal and tits the latter. Thesaid plate, held fromtin-hing relative to the pin or journal of the supporting arm C, forms apart of the means-for locking the seat-frame in the desired positionafter having been turned into such position. It is furnished with holesor sockets 1 1, located at an angular distance apart corresponding innumber of degrees with the diti'erent positions which the seatframe isrequired to have. In this instance .the two holes 1, 1*, shown in thedrawing are )0 degrees apart. A locking pin 2 is movably combined withthe cross-bar b by forming the said cross-bar adjacent its hub whichtits upon the pin or journal (1 with a cylindrical hole extendingvertically therethrough, the said pin being contained within the saidhole and fitting the same with capacity to slide vertically therein.When the upper end of the said pin is projected into one of the holes orsockets of the plate 1,the seat-frame is locked thereby in the angularposition then occupied by it, so as to [H'UVUHLt!Il'lllllglHUVOlllUlltof the seat-frame around the pin or journal (1. The locking pin or bolt.2 is operatively engaged with an actuating lever 3, which is pivoted at'3 in connection with one or a pair of lugs de- The I ment is secured,in the present instance, by forming a transverse recess in the lowerportion of the pin or bolt, and entering into such recess the roundedinner end of the lever 3. The lever 3 LS actuated with yielding force toturn the same so as to push the pin or bolt 2 upward, and to keep it up,as by means of a spring at which is confined between the lever and theunder side of the cross-bar 12 The outwardly-extending portion or arm ofthe lever constitutes a handle by means of which the lever may be movedby hand to work the pin or bolt.

The pin or bolt 2 preferably fits closely and snugly within the hole inwhich it is contained in the cross-bar b and preferably also a close fitis provided for between the'engaging end of the said pin or bolt and theholes or sockets 1, l, in the plate 1. .l.hereby looseness or play ofthe seat-frame in a horizontal direction after being locked in positionis prevented. The locking pin or bolt cannot become forced by strain ora blow of the socket or hole in plate 1 which is occupied by it at anygiven time. Consequently, the seat is held locked positively in thedesired position. As in the Letters Patent aforesaid the pivotal pins a,a, connecting the seat with the side-arms b, b, are located at a shortdistance horizontally from the cross-bar 6 When the seat is turned downinto position for use, as in Fig. 1, it extends over the said cross-barand is supported in its horizontal position by the cross-bar.

lVhat I claim is: a

' The combination with a supporting arm and a seat-frame provided with ahorizontal cross-bar having a socket fitted to an up right journal uponsaid supporting arm, of a locking plate held from turning movementrelative to said supporting arm and provided with holes or sockets, alocking pin or bolt movable vertically through a hole in the saidcross-bar which itfits and adapted to enter by one end thereof intoeither of the said holes or sockets. and an actuating lever pivoted tothe said cross-bar and operatively combined with the said belt or pin.In testimony whereof I afliX my signature in presence of two witnesses.

JAMES GRAVES.

\Vitnesses JAMES DRUMMOXD, G. W. KINNE.

